<!DOCTYPE html>
<html>
<meta charset=utf-8>
<body>
  <div>
    The permission element should have some limits for the min/max-width/height:
    <ul>
    <li>min-width should be sufficient to fit the element text (depends on user agent implementation)</li>
    <li>max-width should be at most 3x min-width</li>
    <li>min-height should be sufficient to fit the element text (1em)</li>
    <li>max-height should be at most 3x min-height</li>
    <li>padding-left/top only work with width/height: auto and are at most 5em/1em</li>
    <li>padding-right/bottom are copied over from padding-left/top in this case</li>
    </ul>
  </div>

  <style>
    #id1 {
      font-size: 10px;
      height: 10px;
      /* width set via JS */
    }
    #id2 {
      font-size: 10px;
      height: 30px;
      /* width set via JS */
    }
    #id3 {
      font-size: 10px;
      height: 30px;
      color:black;
      background-color: black;

      /* Used to compute width which will then have the padding
         artificially added in JS */
      width: fit-content;
    }
  </style>

  <div><permission id="id1" type="geolocation"></div>
  <div><permission id="id2" type="camera"></div>
  <div><permission id="id3" type="microphone"></div>

<script>
  let el = document.getElementById("id1");
  el.style.width = getComputedStyle(el).minWidth;

  el = document.getElementById("id2");
  el.style.width = getComputedStyle(el).maxWidth;

  el = document.getElementById("id3");
  let w = getComputedStyle(el).width;
  el.style.width = `calc(${w} + 100px)`; // 100px is 2 * 5em;
</script>
</body>
</html>